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    Ongoing Tasks - General Info

    • Ongoing tasks are work tasks defined for the database.
    • Once enabled, an ongoing task will keep on running in the background, and perform its defined work whenever a data change relevant to it occurs.
    • Each task has a responsible node from the Database Group nodes, this node will actually perform the defined task work.

    • The available ongoing tasks are:

      • External Replication
        • Create a live copy of one database in another RavenDB database
        • This replication is initiated by a node in the source database group
      • Hub/Sink Replication Tasks
        • Create a live copy of a database or a part of it in another RavenDB database
        • The replication is initiated by the sink task
        • The replication can be bidirectional or limited to a single direction
        • The replication can be filtered to allow the delivery of selected documents
      • RavenDB ETL
        • Write all or chosen database documents to another RavenDB database
        • Data can be filtered and modified with transformation scripts
      • SQL ETL
        • Write the database data to a relational database
        • Data can be filtered and modified with transformation scripts
      • OLAP ETL
        • Convert database data to the Parquet file format for the purpose of OLAP
        • Data can be filtered and modified with transformation scripts
      • Elasticsearch ETL
        • Write all or chosen database documents to an Elasticsearch destination
        • Data can be filtered and modified with transformation scripts
      • Backup
        • Schedule a backup or a snapshot of the database at a specified point in time
      • Subscription
        • Sending batches of documents that match a pre-defined query for processing on a client
        • Data can be filtered and modified with transformation scripts

    • In this page:

    Ongoing Tasks - View

    Figure 1. Ongoing Tasks View

    Ongoing Tasks List for databases DB1

    1. The list of the current tasks on the database

    2. Task name & state:

      • Active - Task is active and will do its job when there is a change to the database
      • Not-Active - Task is defined but has been disabled
      • Not on Node - The node in the currently viewed tab is not responsible for performing the task
      • Reconnect - Destination is unavailable, the task is active and trying to reconnect

    3. The node that is currently responsible for doing the task

      • If not specified by the user, the cluster decides which node will actually be responsible for the task
      • If a node is down, the cluster will reassign the work to another node for the duration

    4. Tasks graph view

    Ongoing Tasks - Actions

    Figure 2. Ongoing Tasks Actions

    Ongoing Tasks - Actions

    1. Add Task - Create a new task for the database - see below
    2. Details - Click for a short task details summary in this view
    3. Enable / Disable the task
    4. Edit - Click to edit the task
    5. Delete the task
    6. Full screen - Click to see the graph in a full-screen mode

    Ongoing Tasks - Add New Task

    Figure 3. Ongoing Tasks New Task

    Add Ongoing Task

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